Barely Lethal, the Hailee Steinfeld-starring film about a teen assassin, has rounded out the cast with three more actors. Rob Huebel, Finesse Mitchell and Rachael Harris have all been added to the film, which will also star Samuel L. Jackson and Jessica Alba.

Steinfeld stars as a teen assassin who runs away in hopes of living an ordinary high school life. She soon discovers that it's not so easy to fit in at high school. Musician/actor Toby Sebastian and actress Dove Cameron also have roles in the pic.

Fanboys director Kyle Newman is directing, with a script by John D'Arco. John Cheng and Brett Ratnerare producing via their RatPac Entertainment, along with Hopscotch Pictures’ Sukee Chew and RKO Pictures' Ted Hartley and Vanessa Coifman.

Huebel has a strong presence in the comedy world, with recent roles in What to Expect When You're Expecting and Seeking a Friend for the End of the World. He's repped by UTA,Principato-Young Entertainment and Jackoway Tyerman Wertheimer Austen Mandelbaum Morris & Klein.

Harris most recently appeared in Diary of a Wimpy Kid: Dog Days and voiced a character in animated pic Wreck-It Ralph. She's repped by ICM Partners, Principato-Young Entertainment and Stone, Meyer, Genow, Smelkinson and Binder.